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Vendor genesisdb
Package neos-genesisdb
Short Description GenesisDB for Neos Flow, a wrapper around the official GenesisDB PHP client
License MIT
Homepage https://www.genesisdb.io

Keywords flow Neos event-sourcing event-store cloudevents genesisdb

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Informations about the package neos-genesisdb

GenesisDB for Neos Flow

Use GenesisDB, the open source event sourcing database, in Neos and Flow. The package wraps the official GenesisDB PHP client in a configurable Flow singleton.

Version 2.0.0 targets GenesisDB 2.0 and the 2.0 PHP client. Configuration keys, type names and method names have changed, see Upgrading from 1.x. Existing 1.x installations keep working against a GenesisDB 2.0 server, which still serves the unchanged 1.x API under /api/v1.

Requirements: PHP 8.2+, Neos Flow 8 or 9, GenesisDB 2.0.

Installation

Configuration

url and authToken fall back to the GENESISDB_URL and GENESISDB_AUTH_TOKEN environment variables when empty.
GenesisDB 2.0 requires tokens of at least 32 bytes, generate one with openssl rand -hex 32. Keep tokens out of version control.
timeout applies to non-streaming calls in seconds. Subscriptions never time out.

Usage

All types come from the PHP client in the GenesisDB namespace: NewEvent, Event, FetchOptions, Precondition, Status and the exceptions.

Commit events

A subject with a single segment such as /customer gets a generated ID appended.

Fetch events

Query with GDBQL

See the GDBQL reference.

Preconditions

Preconditions are checked atomically with the commit. A failed precondition throws PreconditionFailedException and writes nothing.

Precondition::isSubjectExisting('/user/456') holds when the subject or a descendant has events.

Personal data and erasure

Erasure covers reference payloads only. Do not put personal data in subjects, types or sources.

Schemas

Catalog, status and audit

For anything the service does not wrap, $this->genesisDb->client() returns the underlying GenesisDB\Client.

Upgrading from 1.x

1.x	2.0
`apiUrl`	`url`
`apiVersion`	removed, the client always uses API v2
`authToken`	`authToken`, now at least 32 bytes
`streamEvents()`	`fetch()`
`observeEvents()`	`subscribe()`
`commitEvents()`	`commit()`, returns the stored events
`q()`, `queryEvents()`	`query()`
`eraseData()`	`erase()`
`GenesisDB\GenesisDB\CommitEvent`	`GenesisDB\NewEvent`
`GenesisDB\GenesisDB\StreamOptions`	`GenesisDB\FetchOptions`
`CommitEventOptions(storeDataAsReference: true)`	`->asReference()`
`Precondition::generic()`	removed

GenesisDB 2.0 itself migrates an existing data directory on first start. The migration is one-way, so a backup of the data directory before upgrading is mandatory. See Upgrade from 1.x.

License

MIT, see LICENSE.

All versions of neos-genesisdb with dependencies

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Package Version

Version 2.0.0 Release 29. Oct 2026
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Requires php Version >=8.2
neos/flow Version ^8.0 || ^9.0
genesisdb/client-sdk Version ^2.0

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